Did sin enter the world through Adam, Satan or Yahweh?

Most, as well as scriptures, say that it was through Adam, even though Christians sing that Adam’s sin was a happy fault and necessary to Yahweh’s plan.

Given the necessity, Adam, from that, may not be the culpable one and his punishment would be unjust.

Satan had already sinned in heaven before being cast into Eden.

It can be truthfully said that she was the first sinner on earth if we ignore Yahweh.

Further, would you say that Eve sinned, given that Satan or the talking serpent deceived her?

That deception would take lies, and that is a sin, and that sin also preceded Adam’s sin.

Many do not see what the serpent says as a lie, which complicates things.

Was the initial sin, regardless of who did it, a happy fault and necessary to god’s plan like Christians sing in their Exultet hymn?

Did Yahweh lie when he told Adam that he would die if he educated himself with the knowledge in the Tree of Knowledge?

Why and how does knowledge kill us?

If it does, should we keep our children as blind to it as Adam and Eve initially were?

The Eden myth can get quite complicated, especially when Christians call it a fall, then say it was necessary so as not to derail Yahweh’s plan.

This last being what the Jews wrote into their myth and which they say is not the Original Sin of the Christian interpretation, but more like the Original virtue that the Jews call it.

The opposite of what Christianity says, if you ignore their happy fault view.

In terms of first sin, I see Yahweh, since sin was necessary to him as the first sinner, followed by Satan, Yahweh’s loyal opposition and teacher of humankind, and then Adam.

Why Eve at the end of Genesis 3 has to then be second class to Adam, --- he shall rule over you, --- would seem like Yahweh punishing the wrong party.

Thoughts?

Regards
DL